A fungal infection, called onychomycosis, usually starts on your big toe as a discolored spot and spreads to the cuticle, causing the end of your nail to riseOccasionally, infection can also begin at the cuticle and raise your nail from there Once the fungus sets sin, it causes your nails to thicken and flakeOnly use topical treatment if superficial infection of the topTreatment usually begins with your dermatologist trimming your infected nail(s), cutting back each infected nail to the place where it attaches to your finger or toe Your dermatologist may also scrape away debris under the nail This helps get rid of some fungus
Paronychia For Parents Nemours Kidshealth